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83339947025 = 52175912172731
BaseRepresentation
bin100110110011101110…
…0101010110000010001
321222010002210221222122
41031213130222300101
52331140011301100
6102141424144025
76010145601326
oct1154734526021
9258102727878
1083339947025
1132387255785
121419a468015
137b2209282a
144068592b4d
15227b812985
hex136772ac11

83339947025 has 48 divisors (see below), whose sum is σ = 111407244480. Its totient is φ = 61613260800.

The previous prime is 83339946971. The next prime is 83339947027. The reversal of 83339947025 is 52074993338.

It is not a de Polignac number, because 83339947025 - 212 = 83339942929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83339947027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30514910 + ... + 30517640.

It is an arithmetic number, because the mean of its divisors is an integer number (2320984260).

Almost surely, 283339947025 is an apocalyptic number.

83339947025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83339947025 is a deficient number, since it is larger than the sum of its proper divisors (28067297455).

83339947025 is a wasteful number, since it uses less digits than its factorization.

83339947025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 83339947025 in words is "eighty-three billion, three hundred thirty-nine million, nine hundred forty-seven thousand, twenty-five".

Divisors: 1 5 17 25 59 85 295 425 1003 1217 1475 2731 5015 6085 13655 20689 25075 30425 46427 68275 71803 103445 161129 232135 359015 517225 805645 1160675 1220651 1795075 2739193 3323627 4028225 6103255 13695965 16618135 30516275 56501659 68479825 83090675 196093993 282508295 980469965 1412541475 3333597881 4902349825 16667989405 83339947025